Acadian turbidites, folded during the Alleghanian Orogeny. Look for slickensides, trace fossils, turbidity current structures.
For more information on the Brallier, check out this map of the location:
ngmdb.usgs.gov/ngm-bin/pdp/zui_viewer.pl?id=8643

Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.

Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.

Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.

This is a subvertical bedding plane (220° / 80°, right hand rule) of the late Ordovician Martinsburg Formation, showing the bottom of a turbidite bed. Several features are visible in this bottom-up perspective.